SIRFUART_TX_FIFO_CHK_HC  944 drivers/tty/serial/sirfsoc_uart.c 				SIRFUART_TX_FIFO_CHK_HC(port->line, 0x4));
SIRFUART_TX_FIFO_CHK_HC  389 drivers/tty/serial/sirfsoc_uart.h #define SIRFUART_RX_FIFO_CHK_HC SIRFUART_TX_FIFO_CHK_HC